ENGINE MAINTENANCEMA-13
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ENGINE MAINTENANCE
DRIVE BELT
DRIVE BELT : Exploded ViewINFOID:0000000012432248
DRIVE BELT : Removal and InstallationINFOID:0000000012432249
REMOVAL
1. Remove engine undercover. Refer to
EXT-39, "FRONT UNDER COVER : Removal and Installation".
2. Remove wheel and tire (RH) using a power tool. Refer to WT-48, "
Removal and Installation".
3. Partially remove the fender protector (RH). Refer to EXT-38, "
Removal and Installation".
4. Loosen the lock nut and then release the belt tension by turning the adjusting bolt.
5. Remove the drive belt.
INSTALLATION
1. Pull the idler pulley in the loosening direction, and then temporarily tighten the lock nut to the following
torque.
NOTE:
Do not move the lock nut from the temporary tightened position. Go to step 2.
2. Install the drive belt on each pulley. CAUTION:
• Check that there is no engine oil, grease, or engine coolant, etc. in pulley grooves.
• Check that the belt seats securely inside the groove on each pulley.
3. Adjust drive belt tension by turning the adjusting bolt. Refer to MA-14, "
DRIVE BELT : Adjustment".
CAUTION:
• Perform the belt tension adjustment with the lock nut temporarily tightened to the torque specifi-
cation listed in step 1 which preven ts the idler pulley from tilting.
• When checking immediately after in stallation, first adjust it to the specified value. Then, after
turning crankshaft two turns or more, readjust to the specified value to avoid variation in deflec-
tion between pulleys.
4. Tighten the lock nut to final tightening specification.
1. Generator 2. Water pump3. Crankshaft pulley
4. A/C compressor 5. Tensioner idler pulley6. Drive belt
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Lock nut
(Temporary tightening): 4.4 N·m (0.45 kg-m, 39 in-lb)
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2016 Versa Note
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MA-14
< PERIODIC MAINTENANCE >
ENGINE MAINTENANCE
5. Check that belt tension is within the specification using suitable tool. Refer to EM-116, "Drive Belt".
DRIVE BELT : InspectionINFOID:0000000012432250
• Inspection should be done only when engine is cold or over 30
minutes after the engine is stopped.
• Visually check belt for wear, damage, and cracks on inside and edges.
• Turn crankshaft pulley clockwise twice, and check that the tension on all pulleys equalizes before testing.
• When measuring deflection, apply 98.1 N (10 kg, 22 lb) at the ( ) marked point.
• Measure the belt tension and frequency using suitable tool at the ( ) marked point.
CAUTION:
• When checking immediately after installation, first ad just it to the specified value. Then, after turning
crankshaft two turns or more, readjust to the speci fied value to avoid variation in deflection between
pulleys.
DRIVE BELT : AdjustmentINFOID:0000000012432251
CAUTION:
• When belt is replaced with new one, adjust belt tension to the value for “New belt,” because new belt will not fully seat in the pulley groove.
• When tension of the belt being used exceeds “Limit,” adjust it to the value for “After adjusted.”
• When installing a belt, check it is co rrectly engaged with the pulley groove.
• Do not allow engine oil or engine coolant to get on the belt.
• Do not twist or bend the belt strongly.
1. Partially remove the fender protector (RH) front side clip. Refer to EXT-38, "
Removal and Installation".
2. Loosen lock nut (A) and temporarily set to the following torque.
3. Adjust the belt tension by turning the adjusting bolt. Refer to EM-116, "
Drive Belt".
CAUTION: Lock nut (Final tightening) :
34.8 N·m (3.5 kg-m, 26 ft-lb)
(1) : Generator
(2) : Water pump
(3) : Crankshaft pulley
(4) : A/C compressor
(5) : Idler pulley
(6) : Drive belt
Belt deflection/belt tension and frequency : Refer to EM-116, "Drive Belt".
PBIC3642E
LocationLocation of adjuster and tightening method
Drive belt Adjusting bolt on idler pulley
Lock nut (A)
(Temporary tightening): 4.4 N·m (0.45 kg-m, 39 in-lb)
(1) : Generator
(2) : Water pump
(3) : Crankshaft pulley
(4) : A/C compressor
(5) : Idler pulley
(6) : Drive belt
(B) : Adjusting bolt
PBIC3643E
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ENGINE MAINTENANCEMA-15
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• When checking immediately after in
stallation, first adjust it to the specified value. Then, after
turning crankshaft two turns or more, readjust to the specified value to avoid variation in deflec-
tion between pulleys.
• When the tension adjustment is performed, the lo ck nut should be in the condition at Step 2. If
the tension adjustment is perfo rmed when the lock nut is loosened more than the temporary
tightening, the idler pulley tilts and the co rrect tension adjustment cannot be performed.
4. Tighten the lock nut to final tightening specification.
ENGINE COOLANT
ENGINE COOLANT : InspectionINFOID:0000000012432252
CHECKING COOLING SYSTEM HOSES
Check hoses for the following:
• Improper attachment
• Leaks
•Cracks
• Damage
• Loose connections
• Chafing
• Deterioration
CHECKING RESERVOIR LEVEL
• Check that the reservoir tank engine coolant level is within the MAX (A) to MIN (B) range when the engine is cool.
• Adjust the engine coolant level if necessary. CAUTION:
Refill the engine cooling system with the specified coolant or
equivalent. Refer to MA-11, "
Fluids and Lubricants".
CHECKING COOLING SYSTEM FOR LEAKS
WARNING:
Do not remove the radiator cap when the engine is hot. Serious burns could occur from high-pressure
engine coolant escaping from the radiator. Wrap a thick cloth around the cap. Slowly push down and
turn it a quarter turn to allow built-up pressure to escape. Carefully remove the cap by pushing it down
and turning it all the way.
CAUTION:
• Perform this step when the engine is cold.
• Do not spill engine coolant on drive belt.
To check for leaks, apply pressure to the cooling system using suit-
able tools (A) and (B). Lock nut (Final tightening) :
34.8 N·m (3.5 kg-m, 26 ft-lb)
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Testing pressure: Refer to CO-12, "RADIATOR
: Inspection".
PBIC5121J
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2016 Versa Note
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MA-16
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ENGINE MAINTENANCE
ENGINE COOLANT : Draining Engine Coolant
INFOID:0000000012432253
WARNING:
Do not remove the radiator cap when the engine is hot. Serious burns could occur from high-pressure
engine coolant escaping from the radiator. Wrap a th ick cloth around the cap. Slowly push down and
turn it a quarter turn to allow built-up pressure to escape. Carefully remove the cap by pushing it down
and turning it all the way.
1. Remove front under cover. Refer to EXT-39, "
FRONT UNDER COVER : Removal and Installation".
2. Connect a suitable hose to the radiator drain plug. • Use a suitable hose with the dimensions as shown.
3. Open radiator drain plug (A) at the bottom of radiator, and then remove radiator cap.
(B): Suitable hose
: Front
CAUTION:
• Perform this step when engine is cold.
• Do not spill engine coolant on the drive belt.
4. It is necessary to drain the cylinder block when drai ning all of engine coolant in the system. To drain the
cylinder block, open the water drain plugs on cylinder block. Refer to EM-93, "
Exploded View".
5. Remove reservoir tank if necessary, and drain engine coolant and clean reservoir tank before installing. Refer to CO-13, "
Exploded View".
6. Check drained engine coolant for contaminants such as rust, corrosion or discoloration. If contaminated, flush the engine cooling system. Refer to MA-18, "
ENGINE COOLANT : Flushing Cooling System".
ENGINE COOLANT : RefillingINFOID:0000000012432254
1. Install the radiator drain plug. Install the reservoir tank and cylinder block drain plug, if removed for a total
system drain or for engine removal or repair.
• The radiator must be completely empty of engine coolant and water.
• Apply sealant to the threads of the cylinder block drain plug. Use Genuine High Performance
Thread Sealant or equivalent. Refer to MA-11, "
Fluids and Lubricants".
2. If disconnected, reattach the upper radiator hose at the engine side.
3. Set the vehicle heater controls to the full HOT and heat er ON position. Turn the vehicle ignition ON with
the engine OFF as necessary to activate the heater mode. Diameter (A) : 0.8 mm (0.31 in)
Length (B) : 300 mm (11.81 in)
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Radiator drain plug : Refer to
CO-13, "Exploded View".
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ENGINE MAINTENANCEMA-17
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4. Install the Tool by installing the radiator cap adapter onto the
radiator neck opening. Then attach the gauge body assembly
with the refill tube and the venturi assembly to the radiator cap
adapter.
5. Insert the refill hose into the engine coolant mixture container that is placed at floor level. Make sure the ball valve is in the
closed position.
•Use recommended engine coolant or equivalent.
Refer to MA-11, "
Fluids and Lubricants".
CAUTION:
Do not use any cooling system additives such as radiator
sealer. Additives may clog the cooling system and cause
damage to the engine, transmission and/or cooling system.
6. Install an air hose to the venturi assembly, the air pressure must be within specification.
CAUTION:
The compressed air supply must be equipped with an air dryer.
7. The vacuum gauge will begin to rise and there will be an audible hissing noise. During this process open the ball valve on the refill hose slightly. Engine coolant will be visible rising in the refill hose. Once the refill
hose is full of engine coolant, close the ball valve. This will purge any air trapped in the refill hose.
8. Continue to draw the vacuum until the gauge reaches 28 inches of vacuum. The gauge may not reach 28 inches in high altitude
locations, use the vacuum specifications based on the altitude
above sea level.
9. When the vacuum gauge has reached the specified amount, disconnect the air hose and wait 20 seconds
to see if the system loses any vacuum. If the vacuum level drops, perform any necessary repairs to the
system and repeat steps 6 - 8 to br ing the vacuum to the specified amount. Recheck for any leaks.
10. Place the engine coolant container (with the refill hose in serted) at the same level as the top of the radia-
tor. Then open the ball valve on the refill hose so the engine coolant will be drawn up to fill the cooling sys-
tem. The cooling system is full when the vacuum gauge reads zero.
CAUTION:
Do not allow the engine coolant co ntainer to get too low when filling, to avoid air from being drawn
into the cooling system.
11. Remove the Tool from the radiator neck opening.
12. Fill the cooling system reservoir tank to the specif ied level and install the radiator cap. Run the engine to
warm up the cooling system and top up the system as necessary.
13. Install the front under cover. Refer to EXT-39, "
FRONT UNDER COVER : Removal and Installation".
Tool number : KV991J0070 (J-45695)
Engine coolant capacity
(with reservoir tank)
: Refer to
MA-11, "
Fluids and
Lubricants".
Compressed air
supply pressure : 549 - 824 kPa (5.6 - 8.4 kg/cm
2,
80 - 119 psi)LLIA0058E
Altitude above sea level Vacuum gauge reading
0 - 100 m (328 ft) : 28 inches of vacuum
300 m (984 ft) : 27 inches of vacuum
500 m (1,641 ft) : 26 inches of vacuum
1,000 m (3,281 ft) : 24 - 25 inches of vacuum
LLIA0057E
Revision: August 2015 2016 Versa Note
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MA-18
< PERIODIC MAINTENANCE >
ENGINE MAINTENANCE
ENGINE COOLANT : Flushing Cooling System
INFOID:0000000012432255
1. Install radiator drain plug and reservoir tank, if removed.
CAUTION:
Be sure to clean drain plug and install with new O-ring.
2. If water drain plugs on cylinder block were removed, close and tighten them. Refer to EM-93, "
Exploded
View".
3. Remove air duct from between air cleaner case and electric throttle control actuator. Refer to EM-26,
"Removal and Installation".
4. Disconnect heater hose (1) at location ( ) as shown. • Position heater hose as high as possible.
: Front
5. Fill radiator until engine coolant flows out of the disconnected heater hose and then reconnect the heater
hose.
6. Finish filling the engine and reservoir tank with water and reinstall the radiator cap.
7. Install air duct in between air cleaner case and electric throttle control actuator. Refer to EM-26, "
Removal
and Installation".
8. Run the engine and warm it up to normal operating temperature.
9. Rev the engine two or three times under no-load.
10. Stop the engine and wait until it cools down.
11. Drain water from the system. Refer to MA-16, "
ENGINE COOLANT : Draining Engine Coolant".
12. Repeat steps 1 through 11 until clear water begins to drain from radiator.
FUEL LINES
FUEL LINES : InspectionINFOID:0000000012432256
Inspect fuel lines, fuel filler cap, and fuel tank for improper attach-
ment, leakage, cracks, damage, l oose connections, chafing or dete-
rioration.
If necessary, repair or replace damaged parts.
AIR CLEANER FILTER
Radiator drain plug : Refer to CO-13, "Exploded View".
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(A) : Engine
(B) : Fuel line
(C) : Fuel tank
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ENGINE MAINTENANCEMA-19
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AIR CLEANER FILTER : Exploded ViewINFOID:0000000012432257
AIR CLEANER FILTER : Removal and InstallationINFOID:0000000012432258
REMOVAL
1. Unhook clips (A) and pull the air cleaner cover (1) upward.
1. Air cleaner cover
2. Mass air flow sensor 3. Gasket
4. Clamp 5. Air duct 6. Clamp
7. Hose 8. Clamp 9. Grommet
10. Grommet insert 11. Grommet 12. Grommet insert
13. Air duct inlet 14. Air cleaner body 15. Air cleaner filter
A. To electric throttle contro l actuator B. To rocker cover
AWBIA2082ZZ
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MA-20
< PERIODIC MAINTENANCE >
ENGINE MAINTENANCE
2. Remove the air cleaner filter (1) from the air cleaner body.
INSTALLATION
Installation is in the reverse order of removal.
NOTE:
Check that the air cleaner filter is securely placed in the air cleaner body.
ENGINE OIL
ENGINE OIL : InspectionINFOID:0000000012432259
ENGINE OIL LEVEL
NOTE:
Before starting engine, position the vehicle so that it is level and check the engine oil level. If engine is already
started, stop it and allow 10 minutes before checking.
1. Pull out oil level gauge and wipe it clean.
2. Insert oil level gauge and check that the engine oil level is withinthe range (A) as shown.
3. If it is out of range, adjust it.
ENGINE OIL APPEARANCE
• Check engine oil for white milky appearance or excessive contamination.
• If engine oil becomes turbid and white, it is highl y probable that it is contaminated with engine coolant.
Repair or replace damaged parts.
ENGINE OIL LEAKS
Check for engine oil leaks around the following areas:
• Oil pan (upper and lower)
• Oil pan drain plug
• Oil pressure sensor
• Oil filter
• Oil cooler
• Oil level sensor
• Engine oil temperature sensor
• Intake valve timing control solenoid valve
• Exhaust valve timing control solenoid valve
• Mating surface between front cover and rocker cover
• Mating surface between cylinder block and cylinder head
• Mating surface between cylinder head and rocker cover
• Crankshaft oil seals (front and rear)
• Front cover
ENGINE OIL PRESSURE CHECK
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